3v4l.org

run code in 300+ PHP versions simultaneously
<?php sort(array())
Output for 5.3.0 - 5.3.27, 5.4.0 - 5.4.19
Fatal error: Only variables can be passed by reference in /in/Ch9BI on line 2
Process exited with code 255.
preferences:
171.22 ms | 1395 KiB | 55 Q